Job Title
System Administrator – Windows & Infrastructure (On-Prem & Hybrid)
Role Purpose
The System Administrator is responsible for the administration, security, and optimization of the company’s physical and virtual IT infrastructure, ensuring high availability, performance, and security of Windows-based systems, Active Directory, network, storage, and backup environments, as well as integration with modern hybrid/cloud services.
Key Responsibilities
Server & Virtualization Management
Install, configure, and administer Windows Server (2019/2022/2025) on physical and virtual environments
Manage and optimize virtualization platforms such as Hyper-V and VMware vSphere
Perform system updates, patching, hardening, upgrades, and maintain technical documentation
Active Directory & Identity Management
Administer Active Directory, Group Policies, DNS, DHCP, and Certificate Services
Manage users, groups, permissions, and security policies
Integrate on-premises infrastructure with Hybrid / Cloud Identity solutions
Email & Collaboration
Administer the corporate email and collaboration platform Google Workspace (Google Workspace)
Manage email security (antispam, anti-phishing, DLP, MFA policies)
Support migrations, audits, and advanced troubleshooting
Network & Wi-Fi Infrastructure
Ensure the availability and performance of the network infrastructure (LAN, WAN, VPN, Wi-Fi)
Administer network equipment such as switches, access points, and firewalls
Monitor network performance, capacity, and security
Storage & Backup
Administer SAN / NAS storage solutions
Manage, monitor, and regularly test backup and disaster recovery solutions
Ensure compliance with the 3-2-1 backup rule and data retention policies
IT Security
Configure, and maintain Antivirus / Antispam / EDR / XDR solutions
Implement security best practices, patch management, and system hardening
Participate in security audits and incident response activities
Infrastructure Support & Projects
Contribute to special IT projects such as infrastructure upgrades, migrations, and consolidations
Provide advanced technical support (L2/L3)
Innovation & Continuous Improvement
Evaluate, test, and recommend new IT solutions aligned with business requirements
Automate routine tasks using PowerShell or scripting tools
Maintain up-to-date infrastructure documentation and operational procedures
Technical Requirements
Mandatory
Strong experience administering Windows Server and Active Directory
Hands-on experience with virtualization platforms (Hyper-V / VMware)
PowerShell scripting and automation
Solid networking knowledge (TCP/IP, VLANs, VPNs, firewalls)
Experience with backup, disaster recovery, and storage solutions
Strong understanding of IT security principles and best practices
Nice to Have
Experience with Hybrid / Cloud environments (Azure, Google Cloud)
Experience with monitoring tools (e.g., Zabbix, PRTG, Grafana)
Knowledge of compliance frameworks (ISO 27001, GDPR)
Soft Skills
Strong analytical and problem-solving skills
Ability to work independently and in cross-functional teams
Good communication and documentation skills
Ability to handle critical incidents and work under pressure

Sorry, the image could not be loaded.